Function std::yaml_parse

struct Value yaml_parse(const &char text, ?&int ok)

Parses a block-style YAML document (see the file-level comment for the supported subset). On success, '*ok' (if non-NULL) is set to 1; on a structural error (inconsistent indentation, unterminated quoted scalar, a line that's neither a valid sequence/mapping entry nor a bare scalar where one is expected), '*ok' is set to 0 and the return value is whatever was parsed before the error.